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Diffstat (limited to 'node_modules/babel-traverse/lib/index.js')
-rw-r--r-- | node_modules/babel-traverse/lib/index.js | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/node_modules/babel-traverse/lib/index.js b/node_modules/babel-traverse/lib/index.js new file mode 100644 index 0000000..19a14ce --- /dev/null +++ b/node_modules/babel-traverse/lib/index.js @@ -0,0 +1,165 @@ +"use strict"; + +exports.__esModule = true; +exports.visitors = exports.Hub = exports.Scope = exports.NodePath = undefined; + +var _getIterator2 = require("babel-runtime/core-js/get-iterator"); + +var _getIterator3 = _interopRequireDefault(_getIterator2); + +var _path = require("./path"); + +Object.defineProperty(exports, "NodePath", { + enumerable: true, + get: function get() { + return _interopRequireDefault(_path).default; + } +}); + +var _scope = require("./scope"); + +Object.defineProperty(exports, "Scope", { + enumerable: true, + get: function get() { + return _interopRequireDefault(_scope).default; + } +}); + +var _hub = require("./hub"); + +Object.defineProperty(exports, "Hub", { + enumerable: true, + get: function get() { + return _interopRequireDefault(_hub).default; + } +}); +exports.default = traverse; + +var _context = require("./context"); + +var _context2 = _interopRequireDefault(_context); + +var _visitors = require("./visitors"); + +var visitors = _interopRequireWildcard(_visitors); + +var _babelMessages = require("babel-messages"); + +var messages = _interopRequireWildcard(_babelMessages); + +var _includes = require("lodash/includes"); + +var _includes2 = _interopRequireDefault(_includes); + +var _babelTypes = require("babel-types"); + +var t = _interopRequireWildcard(_babelTypes); + +var _cache = require("./cache"); + +var cache = _interopRequireWildcard(_cache); + +function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +exports.visitors = visitors; +function traverse(parent, opts, scope, state, parentPath) { + if (!parent) return; + if (!opts) opts = {}; + + if (!opts.noScope && !scope) { + if (parent.type !== "Program" && parent.type !== "File") { + throw new Error(messages.get("traverseNeedsParent", parent.type)); + } + } + + visitors.explode(opts); + + traverse.node(parent, opts, scope, state, parentPath); +} + +traverse.visitors = visitors; +traverse.verify = visitors.verify; +traverse.explode = visitors.explode; + +traverse.NodePath = require("./path"); +traverse.Scope = require("./scope"); +traverse.Hub = require("./hub"); + +traverse.cheap = function (node, enter) { + return t.traverseFast(node, enter); +}; + +traverse.node = function (node, opts, scope, state, parentPath, skipKeys) { + var keys = t.VISITOR_KEYS[node.type]; + if (!keys) return; + + var context = new _context2.default(scope, opts, state, parentPath); + for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) { + var _ref; + + if (_isArray) { + if (_i >= _iterator.length) break; + _ref = _iterator[_i++]; + } else { + _i = _iterator.next(); + if (_i.done) break; + _ref = _i.value; + } + + var key = _ref; + + if (skipKeys && skipKeys[key]) continue; + if (context.visit(node, key)) return; + } +}; + +traverse.clearNode = function (node, opts) { + t.removeProperties(node, opts); + + cache.path.delete(node); +}; + +traverse.removeProperties = function (tree, opts) { + t.traverseFast(tree, traverse.clearNode, opts); + return tree; +}; + +function hasBlacklistedType(path, state) { + if (path.node.type === state.type) { + state.has = true; + path.stop(); + } +} + +traverse.hasType = function (tree, scope, type, blacklistTypes) { + if ((0, _includes2.default)(blacklistTypes, tree.type)) return false; + + if (tree.type === type) return true; + + var state = { + has: false, + type: type + }; + + traverse(tree, { + blacklist: blacklistTypes, + enter: hasBlacklistedType + }, scope, state); + + return state.has; +}; + +traverse.clearCache = function () { + cache.clear(); +}; + +traverse.clearCache.clearPath = cache.clearPath; +traverse.clearCache.clearScope = cache.clearScope; + +traverse.copyCache = function (source, destination) { + if (cache.path.has(source)) { + cache.path.set(destination, cache.path.get(source)); + } +};
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